You are given
300 grams of FeCr2O7. You are required to get the mass of O2 in grams. The first
thing to do is to find a reaction between FeCr2O7 and O2. The balanced chemical
reaction is 2Fe + 6Cr + 21/2O2 -> Fe2(Cr2O7)3. The molar mass of Fe2(Cr2O7)3
is 759.65 grams per mole and 32 grams per mole for O2.
<span>
300g Fe2(Cr2O7)3
(1 mol Fe2(Cr2O7)3/759.65 g Fe2(Cr2O7)3)(21/2 mol O2/1 mole Fe2(Cr2O7)3)(32 g
O2/1 mole O2) = <u>132.7 g O2</u></span>
True..........................................................
Answer:
hydrogen gas
Explanation: Magnesium combined with sulfuric acid produces magnesium sulfate and hydrogen gas
Explanation:
Answer:
I agree with Lawana's idea because not all of the substances react with each other to form a new substances.
hope this helps you
Principal (shell) quantum number - n
<span>Describes the energy level in the atom (1 through 7)<span>The maximum number of electrons in n is <span>2n2</span></span></span><span> </span>
<span>2. Angular (subshell) quantum number - </span>l
<span><span>Describes the sublevel in n</span><span>Each energy level has n sublevels</span></span><span> </span>
<span>3. Magnetic quantum number - </span>m
<span><span>Describes the orbital within l</span>s has 1 orbitalp has 3 orbitalsd has 5 orbitalsf has 7 orbitals</span><span> </span>
<span>4. Spin quantum number - </span>s
<span>Describes the spin of the electrons in an orbital.Electrons in the same orbital must have oppisite spins.<span>Possible spins are clockwise or counterclockwise.</span></span>
